From 08895e84976efd5f63bc515856efe43aad5abffb Mon Sep 17 00:00:00 2001
From: Theo Buehler <tb@openbsd.org>
Date: Mon, 15 Aug 2022 10:43:49 +0200
Subject: MSC doesn't have getopt

---
 patches/bn_isqrt.c.patch | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100644 patches/bn_isqrt.c.patch

diff --git a/patches/bn_isqrt.c.patch b/patches/bn_isqrt.c.patch
new file mode 100644
index 0000000..bf205a3
--- /dev/null
+++ b/patches/bn_isqrt.c.patch
@@ -0,0 +1,18 @@
+--- tests/bn_isqrt.c.orig	Mon Aug 15 10:40:29 2022
++++ tests/bn_isqrt.c	Mon Aug 15 10:41:46 2022
+@@ -304,6 +304,7 @@ main(int argc, char *argv[])
+ 	int ch;
+ 	int failed = 0, print = 0;
+ 
++#ifndef _MSC_VER
+ 	while ((ch = getopt(argc, argv, "C")) != -1) {
+ 		switch (ch) {
+ 		case 'C':
+@@ -314,6 +315,7 @@ main(int argc, char *argv[])
+ 			break;
+ 		}
+ 	}
++#endif
+ 
+ 	if (print)
+ 		return check_tables(1);
-- 
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